Audio (L/R) 500mV(rms) (-4dBs), High impedance (RCA pin jack × 2)
Output Video 1V(p-p) 75Ω
Audio (L/R) 500mV(rms), Low Impedance
Input Terminal Rear Side EXT-1 (Video / Audio / RGB)
EXT-2 (Video / Audio / RGB / S-VHS)
Right Side EXT-3 (Video / Audio)
Output Terminal Rear Side EXT-1 (Video / Audio)
EXT-2 (Video / Audio)
Right Side Headphone Jack (Stereo mini jack Ø3.5mm × 1)
Remote Control Unit VE-30017763 (RM-C1100), (AA/R06 dry battery × 2)
(No.52137)1-3
SECTION 1PRECAUTION
1.1 SAFETY PRECAUTIONS(1) The design of this product contains special hardware,
many circuits and components specially for safetypurposes. For continued protection, no changes should bemade to the original design unless authorized in writing bythe manufacturer. Replacement parts must be identical tothose used in the original circuits. Service should beperformed by qualified personnel only.
(2) Alterations of the design or circuitry of the products shouldnot be made. Any design alterations or additions will voidthe manufacturer's warranty and will further relieve themanufacturer of responsibility for personal injury orproperty damage resulting therefrom.
(3) Many electrical and mechanical parts in the products havespecial safety-related characteristics. Thesecharacteristics are often not evident from visual inspectionnor can the protection afforded by them necessarily beobtained by using replacement components rated forhigher voltage, wattage, etc. Replacement parts whichhave these special safety characteristics are identified inthe parts list of Service manual. Electrical componentshaving such features are identified by shading on theschematics and by ( ) on the parts list in Servicemanual. The use of a substitute replacement which doesnot have the same safety characteristics as therecommended replacement part shown in the parts list ofService manual may cause shock, fire, or other hazards.
(4) Don't short between the LIVE side ground andISOLATED (NEUTRAL) side ground or EARTH sideground when repairing. Some model's power circuit is partly different in the GND.The difference of the GND is shown by the LIVE : ( ) sideGND, the ISOLATED (NEUTRAL) : ( ) side GND andEARTH : ( ) side GND. Don't short between the LIVE side GND and ISOLATED(NEUTRAL) side GND or EARTH side GND and nevermeasure the LIVE side GND and ISOLATED (NEUTRAL)side GND or EARTH side GND at the same time with ameasuring apparatus (oscilloscope etc.). If above note willnot be kept, a fuse or any parts will be broken.
(5) If any repair has been made to the chassis, it isrecommended that the B1 setting should be checked oradjusted (See B1 POWER SUPPLY check).
(6) The high voltage applied to the picture tube must conformwith that specified in Service manual. Excessive highvoltage can cause an increase in X-Ray emission, arcingand possible component damage, therefore operationunder excessive high voltage conditions should be kept toa minimum, or should be prevented. If severe arcingoccurs, remove the AC power immediately and determinethe cause by visual inspection (incorrect installation,cracked or melted high voltage harness, poor soldering,etc.). To maintain the proper minimum level of soft X-Rayemission, components in the high voltage circuitryincluding the picture tube must be the exact replacementsor alternatives approved by the manufacturer of thecomplete product.
(7) Do not check high voltage by drawing an arc. Use a highvoltage meter or a high voltage probe with a VTVM.Discharge the picture tube before attempting meterconnection, by connecting a clip lead to the ground frameand connecting the other end of the lead through a 10kΩ2W resistor to the anode button.
(8) When service is required, observe the original lead dress.Extra precaution should be given to assure correct leaddress in the high voltage circuit area. Where a short circuithas occurred, those components that indicate evidence ofoverheating should be replaced. Always use themanufacturer's replacement components.
(9) Isolation Check (Safety for Electrical Shock Hazard) After re-assembling the product, always perform anisolation check on the exposed metal parts of the cabinet(antenna terminals, video/audio input and output terminals,Control knobs, metal cabinet, screw heads, earphone jack,control shafts, etc.) to be sure the product is safe to operatewithout danger of electrical shock.
a) Dielectric Strength Test The isolation between the AC primary circuit and all metalparts exposed to the user, particularly any exposed metalpart having a return path to the chassis should withstand avoltage of 3000V AC (r.m.s.) for a period of one second. (. .. . Withstand a voltage of 1100V AC (r.m.s.) to an appliancerated up to 120V, and 3000V AC (r.m.s.) to an appliancerated 200V or more, for a period of one second.) This method of test requires a test equipment not generallyfound in the service trade.
b) Leakage Current Check Plug the AC line cord directly into the AC outlet (do not usea line isolation transformer during this check.). Using a"Leakage Current Tester", measure the leakage currentfrom each exposed metal part of the cabinet, particularlyany exposed metal part having a return path to the chassis,to a known good earth ground (water pipe, etc.). Anyleakage current must not exceed 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.2mA AC(r.m.s.). Alternate Check Method
Plug the AC line cord directly into the AC outlet (do notuse a line isolation transformer during this check.). Usean AC voltmeter having 1000Ω per volt or moresensitivity in the following manner. Connect a 1500Ω10W resistor paralleled by a 0.15µF AC-type capacitorbetween an exposed metal part and a known good earthground (water pipe, etc.). Measure the AC voltageacross the resistor with the AC voltmeter. Move theresistor connection to each exposed metal part,particularly any exposed metal part having a return pathto the chassis, and measure the AC voltage across theresistor. Now, reverse the plug in the AC outlet andrepeat each measurement. Any voltage measured mustnot exceed 0.75V AC (r.m.s.). This corresponds to0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.3V AC(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER(HAVING 1000 /V,OR MORE SENSITIVITY)
PLACE THIS PROBEON EACH EXPOSEDMETAL PART1500 10W
0.15 F AC-TYPE
GOOD EARTH GROUND
1-4 (No.52137)
SECTION 2SPECIFIC SERVICE INSTRUCTIONS
2.1 21-pin Euro connector (SCART) : EXT-1 / EXT-2
(P-P= Peak to Peak, B-W= Blanking to white peak)
Pin No. Signal Designation Matching Value EXT-1 EXT-21 AUDIO R output 500mV(rms) (Nominal), Low impedance Used Used
2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2)
3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used Used
4 AUDIO GND --- Used Used
5 GND (B) --- Used Used
6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2)
7 B input 700mV(B-W), 75 Ω Used Used
8 FUNCTION SW(SLOW SW)
Low : 0V-3V, High : 8V-12V, High impedance
Used Used
9 GND (G) --- Used Used
10 SCL / T-V LINK --- Not used Used (SCL / TV-LINK)
11 G input 700mV(B-W), 75 Ω Used Used
12 SDA3 --- Not used Not used
13 GND (R) --- Used Used
14 GND (YS) --- Used Used
15 R / C input R : 700mV(B-W), 75 Ω C : 300mV(P-P), 75 Ω
Used (R) Used (C2/R)
16 Ys input(FAST SW)
Low : 0V-0.4V, 75 ΩHigh : 1V-3V, 75 Ω
Used Used
17 GND (VIDEO output) --- Used Used
18 GND (VIDEO input) --- Used Used
19 VIDEO output 1V(P-P) (Negative sync), 75 Ω Used Used
20 VIDEO / Y input 1V(P-P) (Negative sync), 75 Ω Used Used
21 COMMON GND --- Used Used
20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1
[Pin assignment]
(No.52137)1-5
2.2 FEATURES• It is a remote controlled color television.• 100 programs from VHF, UHF bands or cable channels can be
preset.• It can tune cable channels.• Controlling the TV is very easy by its menu driven system.• It has two Euroconnector sockets for external device (such as
video recorder, video games, audio set, etc.)• Side AV Input (EXT-3) available.• Stereo sound systems (German + Nicam) are available.• Full function Teletext (Fastext, Toptext).• It is possible to connect headphone.• Direct channel access.
• APS (Automatic Programming System).• All programs can be named.• Forward or backward automatic tuning.• Sleep timer.• Child Lock.• Blue Background• T-V Link• Automatic sound mute when no transmission.• 5 minutes after the broadcasting (close down), the TV switches
OSD LANGUAGES ENG, GER, FRE, ITASPA, DUT, POR, TUR
ENG, GER, FRE, SWENOR, DAN, FIN, GRE
ENG, GER, CZE, POLHUN, BUL, ROM, CRO
1-6 (No.52137)
SECTION 3DISASSEMBLY
3.1 DISASSEMBLY PROCEDULE3.1.1 REMOVING THE REAR COVER
(1) Unplug the power cord.(2) Remove the 8 screws [A] as shown in the Fig. 1. (3) Remove the 4 screws [B].(4) Withdraw the REAR COVER toward you.
3.1.2 REMOVING THE BACK DOOR• Remove the REAR COVER
(1) Remove the 2 screws [C].(2) Withdraw the BACK DOOR toward you.
3.1.3 REMOVING THE SPEAKER• Remove the REAR COVER.
(1) Remove the 4 screws [I], and remove the SPEAKER.(2) Remove the other hand SPEAKER in the same steps.
3.1.4 REMOVING THE MAIN PWB• Remove the REAR COVER.• Remove the BACK DOOR.
(1) Remove the 4 screws [D].(2) Slightly raise the both sides of the MAIN PWB by hand and
withdraw the MAIN PWB backward.
CAUTION:If necessary, take off the wire clamp, connectors etc.Be careful enough when developing a MAIN PWB.
3.1.5 REMOVING THE SIDE CONTROL PWB• Remove the REAR COVER.
(1) Remove the 4 screws [E].(2) Remove the SIDE PWB.
3.1.6 REMOVING THE BASE• Remove the REAR COVER.
(1) Remove the 2 screws [F].(2) Remove the BASE.
NOTE:Work after fixing so that a CRT screen may be placed upsidedown or it may not fall.
3.1.7 REMOVING THE POWER SWITCH PWB• Remove the REAR COVER.• Remove the BASE.
(1) Remove the 2 screws [G], and remove the POWERSWITCH PWB.
3.1.8 REMOVING THE LED PWB• Remove the REAR COVER.• Remove the BASE.• Remove the POWER SWITCH PWB.
(1) Remove the 2 screws [H], and remove the LED PWB.
3.1.9 CHECKING THE PW BOARD• To check the back side of the PW Board.
(1) Pull out the PW Board. (Refer to REMOVING THE MAINPWB).
(2) Erect the PW Board vertically so that you can easily checkthe back side of the PW Board.
3.1.10 CAUTION• When erecting the PW Board, be careful so that there will be
no contacting with other PW Board.• Before turning on power, make sure that the wire connector is
properly connected.• When conducting a check with power supplied, be sure to
confirm that the CRT EARTH WIRE (BRAIDED ASS'Y) isconnected to the CRT SOCKET PW board.
3.1.11 WIRE CLAMPING AND CABLE TYING(1) Be sure to clamp the wire.(2) Never remove the cable tie used for tying the wires
together.Should it be inadvertently removed, be sure to tie the wireswith a new cable tie.
(No.52137)1-7
Fig.1
x4
x2
x4
x4
x4x4
x2
x2
x2
x8
LED PWB
POWER SWITCH PWB
MAIN PWB
BASE
REAR COVER
BACK DOOR
CRT SOCKET PWB
SPEAKER
SIDE CONTROL
PWB
B
A
C
D
E
F
H
G
I
I
1-8 (No.52137)
3.2 REPLACEMENT OF CHIP COMPONENT3.2.1 CAUTIONS
(1) Avoid heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern.(3) When removing a chip part, melt the solder adequately. (4) Do not reuse a chip part after removing it.
3.2.2 SOLDERING IRON(1) Use a high insulation soldering iron with a thin pointed end of it. (2) A 30w soldering iron is recommended for easily removing parts.
3.2.3 REPLACEMENT STEPS 1. How to remove Chip parts
[Resistors, capacitors, etc.]
(1) As shown in the figure, push the part with tweezers andalternately melt the solder at each end.
(2) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply extra solder to each lead.
(2) As shown in the figure, push the part with tweezers andalternately melt the solder at each lead. Shift and removethe chip part.
NOTE :After removing the part, remove remaining solder from thepattern.
2. How to install Chip parts
[Resistors, capacitors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on thesolder. Then heat and melt the solder at both ends of thechip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply solder to the pattern as indicated in the figure. (2) Grasp the chip part with tweezers and place it on the
solder. (3) First solder lead A as indicated in the figure.
(4) Then solder leads B and C.
SOLDER SOLDER
A
B
C
A
B
C
(No.52137)1-9
3.3 SETTING OF THE LAST MEMORY FOR SHIPMENT3.3.1 USER SETTING VALUES
3.3.2 SETTING A.P.S. (AUTO STORE)(1) Press [MENU] key on the remote control unit to display the main menu.(2) Press [ / ] keys to select PROGRAM item, them [ / ] keys to display the PROGRAM menu.(3) Press the [BLUE] key to enter the AUTOSTORE mode.(4) Press [ / ] keys to choose the COUNTRY, then press [ / ] keys the choose country you are nou located.(5) Press [ / ] keys to choose the CONTINUE, then press [ ] key to start A.P.S. The following message appears.
NOTE:To cancel the A.P.S., press the [STANDARD] key.
(6) After A.P.S. is finalized, the PROGRAM menu appears again.(7) Press [STANDARD] key to exit main menu.
Setting Item Setting Value Setting Item Setting ValueSOUND MENU FEATURE MENU
BALANCE CENTER SLEEP TIMER OFF
BASS CENTER CHILD LOCK OFF
TREBLE CENTER LANGUAGE ENGLISH
HYPER SOUND OFF EXT-2 OUTPUT TV
PICTURE MENU BLUE BACKGROUND ON
BRIGHTNESS These adjust are automaticallyrestored when A.P.S. bit in Servicemenu is set.The procedure for setting APSbit is described bellow.
INSTALL. MENU
CONTRAST PROGRAMME Refer to instruction book
COLOUR BAND
SHARPNESS CHANNEL
HUE (only NTSC) STANDARD
PICTURE MODE USER COLOUR SYSTEM
COLOUR TEMP NORMAL DECODER (EXT-2)
ZOOM AUTO FINE TUNING
SEARCH
STORE
1-10 (No.52137)
SECTION 4ADJUSTMENT
4.1 ADJUSTMENT PREPARATION(1) You can make the necessary adjustments for this unit with
either the Remote Control Unit or with the adjustment toolsand parts as given below.
(2) Adjustment with the Remote Control Unit is made on thebasis of the initial setting values, however, the new settingvalues which set the screen to its optimum condition maydiffer from the initial settings.
(3) Make sure that AC power is turned on correctly.(4) Turn on the power for set and test equipment before use,
and start the adjustment procedures after waiting at least30 minutes.
(5) Unless otherwise specified, prepare the most suitablereception or input signal for adjustment.
(6) Never touch any adjustment parts which are not specifiedin the list for this adjustment - variable resistors,transformers, condensers, etc.
(7) Presetting before adjustment.Unless otherwise specified in the adjustment instructions,preset the following functions with the remote control unit:
4.2 MEASURING EQUIPMENT(1) DC voltmeter (or digital voltmeter)(2) Signal generator (Pattern generator)
4.5 BASIC OPERATION OF SERVICE MENU4.5.1 HOW TO ENTER THE SERVICE MENU
(1) Press the [INFORMATION] key and [MUTING] keysimultaneously in the main menu, and the SERVICEMENU screen (Fig.1) will be displayed.
Fig.1
(2) While the SERVICE MENU screen is displayed, press the[ / ] and [ / ] key and select the "ADJUST...", thenADJUST MENU sucreen (Fig.2) will be displayed.
Fig.2
4.5.2 SELECTION OF ADJUSTMENT ITEMS(1) Enter the SERVICE MENU and select ADJUST.(2) Press the [ / ] key and select the ADJUSTMENT ITEM.(3) Press the [ / ] key and set the SETTING VALUE.(4) Changed values are stored automatically.
4.5.3 HOW TO EXIT SERVICE MODE(1) Press the [MENU] key.
SERVICE
ADJUST...
OPTIONS...
AK45JA***
AK45JA***
SERVICE MENU
Select for adjustment Do not adjust
ADJUST...
SETTING ITEM No. SETTING VALUE
000
001
002
003
004
005
006
007
008
009
***
***
***
***
***
***
***
***
***
***
ADJUST MENU
MUTING key
REMOTE CONTROL UNIT key NAME
INFORMATION key
UP / DOWN
[ ] key
MENU key
LEFT / RIGHT
[ ] key
1-12 (No.52137)
4.5.4 SERVICE MENU SCREEN
NOTE:
Do not adjust the OPTIONS MENU. If you change the setting value, the set will not function correctly.
Do Not Adjust
SERVICE
ADJUST...
OPTIONS...
AK45JA***
AK45JA***
SERVICE MENU
ADJUST...
SETTING ITEM No.000~143
SETTING VALUE
000
001
002
003
004
005
006
007
008
009
***
***
***
***
***
***
***
***
***
***
ADJUST MENU
OPTIONS..
SETTING ITEM No.000~063
SETTING VALUE
000
001
002
003
004
005
006
007
008
009
**
**
**
**
**
**
**
**
**
**
********
********
********
********
********
********
********
********
********
********
OPTIONS MENU
(No.52137)1-13
ADJUSTMENT ITEM
adjustment No. adjustment part description000 White Point RED Not used001 White Point GREEN Not used002 Whit Point BLUE Not used003 AGC (Automatic Gain Control)004 IF-PLL Negative Not used005 IF-PLL Positive Not used006 Y-Delay007 Y-Delay SECAM008 Y-Delay NTSC009 Y-Delay OTHER Not used010 Vertical Position Offset Fixed011 Vertical Amplitude Offset Fixed012 Horizontal Position Offset Fixed013 Horizontal Amplitude Offset Fixed014 Vertical Blank Start (It will be used only at 4:3 tube for 16:9 mode adjustment)015 Vertical Blank Stop (It will be used only at 4:3 tube for 16:9 mode adjustment)016 Angle017 Bow018 4:3 Horz. Blank Start Do not adjust019 4:3 Horz. Blank Stop Do not adjust020 EHTV compensation021 EHTTM compensation022 EHTEW compensation023 WDR Video processor
adjust itself.024 WDG025 WDB026 CR027 CG028 CB029 COR coring level030 REGULAR VERT_POS (Vertical Position)031 REGULAR VERT_AMPL (Vertical Amplitude)032 REGULAR VERT_SCOR (Vertical S Correction)033 REGULAR VERT_SSYM (Vertical S Symmetry)034 REGULAR TRAPEZE035 REGULAR CUSHION036 REGULAR HOR_COR_SYM(Horizontal Corner Symmetry)037 REGULAR HOR_CORNER (Horizontal Corner)038 REGULAR HORZ_POS (Horizontal Position)039 REGULAR HORZ_AMPL (Horizontal Amplitude)040 PANORAMIC VERT_POS Not used041 PANORAMIC VERT_AMPL Not used042 PANORAMIC VERT_SCOR Not used043 PANORAMIC VERT_SSYM Not used044 PANORAMIC TRAPEZE Not used045 PANORAMIC CUSHION Not used046 PANORAMIC HOR_COR_SYM Not used047 PANORAMIC HOR_CORNER Not used048 PANORAMIC HORZ_POS Not used
1-14 (No.52137)
049 PANORAMIC HORZ_AMPL Not used050 14:9 ZOOM VERT_POS Not used051 14:9 ZOOM VERT_AMPL Not used052 14:9 ZOOM VERT_SCOR Not used053 14:9 ZOOM VERT_SSYM Not used054 14:9 ZOOM TRAPEZE Not used055 14:9 ZOOM CUSHION Not used056 14:9 ZOOM HOR_COR_SYM Not used057 14:9 ZOOM HOR_CORNER Not used058 14:9 ZOOM HORZ_POS Not used059 14:9 ZOOM HORZ_AMPL Not used060 16:9 ZOOM VERT_POS Not used061 16:9 ZOOM VERT_AMPL Not used062 16:9 ZOOM VERT_SCOR Not used063 16:9 ZOOM VERT_SSYM Not used064 16:9 ZOOM TRAPEZE Not used065 16:9 ZOOM CUSHION Not used066 16:9 ZOOM HOR_COR_SYM Not used067 16:9 ZOOM HOR_CORNER Not used068 16:9 ZOOM HORZ_POS Not used069 16:9 ZOOM HORZ_AMPL Not used070 16:9 ZOOM SUBTITLE VERT_POS Not used071 16:9 ZOOM SUBTITLE VERT_AMPL Not used072 16:9 ZOOM SUBTITLE VERT_SCOR Not used073 16:9 ZOOM SUBTITLE VERT_SSYM Not used074 16:9 ZOOM SUBTITLE TRAPEZE Not used075 16:9 ZOOM SUBTITLE CUSHION Not used076 16:9 ZOOM SUBTITLE HOR_COR_SYM Not used077 16:9 ZOOM SUBTITLE HOR_CORNER Not used078 16:9 ZOOM SUBTITLE HORZ_POS Not used079 16:9 ZOOM SUBTITLE HORZ_AMPL Not used080 OSD Position081 BCLTHR Beam current threshold082 BCLG Beam current loop gain083 ROTATION (TILT)084 LSLSA Luma soft limiter Fixed085 LSLSB Luma soft limiter Fixed086 LSL2 Luma soft limiter Fixed087 LSLTA Luma soft limiter Fixed088 LSLTB Luma soft limiter Fixed089 REFERENCE WDR RED (NORMAL)090 REFERENCE WDR GREEN (NORMAL)091 REFERENCE WDR BLUE (NORMAL)092 REFERENCE CUTOFF RED Fixed093 REFERENCE CUTOFF GREEN Fixed094 REFERENCE CUTOFF BLUE Fixed095 IBRM096 WDRV097 ACC_SAT (COLOUR OFFSET)098 G2_CUTOFF_REFERENCE Fixed
adjustment No. adjustment part description
(No.52137)1-15
099 G2_WDR_REFERENCE Fixed100 POFS2 (RGB HORIZANTAL SHIFT)101 REFERENCE WDR RED COOL102 REFERENCE WDR GREEN COOL103 REFERENCE WDR BLUE COOL104 REFERENCE WDR RED WARM105 REFERENCE WDR GREEN WARM106 REFERENCE WDR BLUE WARM107 STANDARD MODE BRIGHTNESS108 STANDARD MODE COLOUR109 STANDARD MODE CONTRAST110 FULL VERT_POS (16:9 MODE)111 FULL VERT_AMPL112 FULL VERT_SCOR113 FULL VERT_SSYM114 FULL TRAPEZE115 FULL CUSHION116 FULL HOR_COR_SYM117 FULL HOR_CORNER118 FULL HORZ_POS119 FULL HORZ_AMPL120 BRIGHT MODE BRIGHTNESS121 BRIGHT MODE COLOUR122 BRIGHT MODE CONTRAST123 SOFT MODE BRIGHTNESS124 SOFT MODE COLOUR125 SOFT MODE CONTRAST126 PERSONAL MODE FACTORY SETTING BRIGHTNESS Fixed127 PERSONAL MODE FACTORY SETTING COLOUR Fixed128 PERSONAL MODE FACTORY SETTING CONTRAST Fixed129 SCINC FOR PANORAMIC MODE130 SCINC1 FOR PANORAMIC MODE131 VOLUME AFTER APS132 VERTICAL SCROLL133 14:9 HORIZONTAL START Not used134 14:9 HORIZONTAL STOP Not used135 4:3 RGB HORIZONTAL AMPLITUDE136 4:3 RGB CUSHION137 14:9 RGB HORIZONTAL AMPLITUDE Not used138 14:9 RGB CUSHION Not used139 PANAROMIC RGB HORIZONTAL AMPLITUDE Not used140 16:9 RGB HORIZONTAL AMPLITUDE Not used141 16:9 SUBTITLE RGB HORIZONTAL AMPLITUDE Not used142 FULL RGB HORIZONTAL AMPLITUDE143 TELETEXT HORIZONTAL POSITION
Item Measuring instrument Test point Adjustment part Description
FOCUSadjustment
Signal generator
Remote control unit
FOCUS VR[On the FBT]
(1) Receive a PAL cross-hatch signal.(2) Adjust FOCUS VR on the FBT as thin as possible.
SCREENadjustment
Remote control unit
SCREEN VR[On the FBT]
(1) Enter the OPTIONS MENU.(2) Select option No.002 and change bit 6 from 0 to 1
disabling vertical scan. Then horizontal line appears.(3) Adjust horizontal line as thin as possible via screen
adjust pot.(4) Press number 0 key to leave service menu.
Item Measuring instrument Test point Adjustment part Description
AGCadjustment
Signal generator
Remote control unit
Volt meter
003 (1) Receive a PAL BG signal at 60dBµV RF signal level.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 003.(5) Adjust 003 by pressing till voltage at pin 1 of TUNER
is equal to 3.0V.
FBT
FOCUS VR
SCREEN VR
(No.52137)1-17
4.6.3 DEFLECTION CIRCUIT ADJUSTMENT
Item Measuring instrument Test point Adjustment part Description
VERTICAL POSITIONadjustment
Signal generator
Remote control unit
030
110 (16:9 mode)
(1) Receive a PAL circle pattern signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 030.(5) Adjust 030 to make A=B.(6) Check and readjust 030 item if the adjustment
becomes improper after some other geometricadjustments are done.
(7) Select 110 (16:9 mode).(8) Adjust 110 in the same procedure.
VERTICAL SIZEadjustment
Signal generator
Remote control unit
031
111 (16:9 mode)
(1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 031.(5) Adjust 031 until horizontal black lines on both the
upper and lower part of the cross-hatch patternbecome very closeted the upper and lowerhorizontal sides of picture size and nearly about todisappear.
(6) Check and readjust 031 item if the adjustmentbecomes improper after some other geometricadjustments are done.
(7) Select 111 (16:9 mode).(8) Adjust 111 in the same procedure.
VERTICAL S-CORRECTION & LINEARITYadjustment
Signal generator
Remote control unit
032
033
112 (16:9 mode)
113 (16:9 mode)
(1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 032.(5) Adjust 032 till the size of squares on both the upper
and lower part of cross-hatch pattern become equalto the squares laying on the vertical center of thecross-hatch pattern.
(6) Check and readjust 032 item if the adjustmentbecomes improper after some other geometricadjustments are done.
(7) Select 033.(8) Adjust 033 till all the size of squares of the cross-
hatch pattern become in equal size from the top ofthe screen to its bottom of the whole screen.
(9) Check and readjust 033 item if the adjustmentbecomes improper after some other geometricadjustments (especially after than S-CORadjustment) are done.
(10) Select 112 (16:9 mode).(11) Adjust 112 in the same procedure as 5.(12) Select 113 (16:9 mode).(13) Adjust 113 in the same procedure as 8.
Screensize
Very close
Very close
Picturesize100%
UPPER
CENTER
LOWER
1-18 (No.52137)
HORIZONTAL POSITIONadjustment
Signal generator
Remote control unit
038
118 (16:9 mode)
(1) Receive a PAL circle pattern signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 038.(5) Adjust 038 to make C=D.(6) Check and readjust 038 item if the adjustment
becomes improper after some other geometricadjustments are done.
(7) Select 118 (16:9 mode).(8) Adjust 118 in the same procedure.
HORIZONTAL SIZEadjustment
Signal generator
Remote control unit
039
119 (16:9 mode)
(1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 039.(5) Adjust 039 until vertical lines on both the left and
right part of the cross-hatch will be visible nor screenwill be so wide.
(6) Check and readjust 039 item if the adjustmentbecomes improper after some other geometricadjustments are done.
(7) Select 119 (16:9 mode).(8) Adjust 119 in the same procedure.
ANGLEadjustment
Signal generator
Remote control unit
016 (1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 016.(5) Adjust 016 till the vertical lines of the cross-hatch
pattern become straight.(6) Check and readjust 016 item if the adjustment
becomes improper after some other geometricadjustments are done.
Item Measuring instrument Test point Adjustment part Description
C D
Screen sizeVeryclose
Veryclose
Picture size 100%
(No.52137)1-19
BOWadjustment
Signal generator
Remote control unit
017 (1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 017.(5) Adjust 017 till the vertical lines become straight.(6) Check and readjust 017 item if the adjustment
becomes improper after some other geometricadjustments are done.
NOTE:In case where there is a bow-shaped distortion ofimages on the screen. (Figure)
TRAPEZIUMadjustment
Signal generator
Remote control unit
034
114 (16:9 mode)
(1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 034.(5) Adjust 034 till vertical lines, especially lines at the
sides of the picture frame become parallel to theboth sides of picture tubes as close as possible.
(6) Check and readjust 034 item if the adjustmentbecomes improper after some other geometricadjustments are done.
(7) Select 114 (16:9 mode).(8) Adjust 114 in the same procedure.
SIDE PINadjustment
Signal generator
Remote control unit
035
115 (16:9 mode)
(1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 035.(5) Adjust 035 till vertical lines close to the both sides of
the picture frame become parallel to vertical sides ofpicture tube without any bending to left or to rightside of the screen.
(6) Check and readjust 035 item if the adjustmentbecomes improper after some other geometricadjustments are done.
(7) Select 115 (16:9 mode).(8) Adjust 115 in the same procedure.
Item Measuring instrument Test point Adjustment part Description
Parallel
Parallel
1-20 (No.52137)
CORNERadjustment
Signal generator
Remote control unit
036
037
116 (16:9 mode)
117 (16:9 mode)
(1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 036.(5) Adjust 036 till vertical lines at the upper corners of
the picture frame become vertical and parallel tovertical corner sides of picture tube.
(6) Check and readjust 036 item if the adjustmentbecomes improper after some other geometricadjustments are done.
(7) Select 037.(8) Adjust 037 till vertical lines at the lower corners of the
picture frame become vertical and parallel to verticalcorner sides of picture tube.
(9) Check and readjust 037 item if the adjustmentbecomes improper after some other geometricadjustments are done.
(10) Select 116 (16:9 mode).(11) Adjust 116 in the same procedure as 5.(12) Select 117 (16:9 mode).(13) Adjust 117 in the same procedure as 8.
ROTATIONadjustment
Signal generator
Remote control unit
083 (1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 083.(5) Adjust 083 to rotate the complete master clock-wise
and counter clock-wise depending on the CRT.(6) Check and readjust 083 item if the adjustment
becomes improper after some other geometricadjustments are done.
NTSCHORIZONAL SIZEadjustment
Signal generator
Remote control unit
135
142 (16:9 mode)
(1) Receive a NTSC cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 135.(5) Adjust 135 till vertical lines on both the left and right
part of the cross-hatch will be visible nor screen willbe so wide.
(6) Check and readjust TRAPEZ item if the adjustmentbecomes improper after some other geometricadjustments are done.
(7) Select 142 (16:9 mode).(8) Adjust 142 in the same procedure.
Item Measuring instrument Test point Adjustment part Description
Straight Straight
Screen sizeVeryclose
Veryclose
Picture size 100%
(No.52137)1-21
NTSCSIDE PINadjustment
Signal generator
Remote control unit
136 (1) Receive a NTSC cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 136.(5) Adjust 136 till vertical lines close to the both sides of
the picture frame become parallel to vertical sides ofpicture tube without any bending to left or to rightside of the screen.
(6) Check and readjust 136 item if the adjustmentbecomes improper after some other geometricadjustments are done.
TELETEXT SCREENadjustment
Signal generator
Remote control unit
143 (1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 143.(5) Adjust 143 to adjust the proper vertical size of
Teletext screen.(6) Check and readjust 143 item if the adjustment
becomes improper after some other geometricadjustments are done.
Item Measuring instrument Test point Adjustment part Description
Parallel
1-22 (No.52137)
4.6.4 VIDEO CIRCUIT
Item Measuring instrument Test point Adjustment part Description
WHITE BALANCE adjustment
Signal generator
Remote control unit
023
024
025
(1) Receive a PAL black & white signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 023, 024 and 025 respectively.(5) Adjust 023, 024 and 025 respectively, until the white
part turns to pure white without any other colour.
COLOUR CUTOFF LEVELadjustment
Signal generator
Remote control unit
026
027
028
(1) Receive a PAL cross-hatch signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 026, 027 and 028 respectively.(5) Adjust 026, 027 and 028 respectively, until the black
part turns to pure black without any other colour.
PALY DELAYadjustment
Signal generator
Remote control unit
006 (1) Receive a PAL colour bar signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 006.(5) Adjust 006 till the colour transients on the colour bar
pattern becomes as sharper and possible as coloursbetween transients do not mix with each other.
SECAMY DELAYadjustment
Signal generator
Remote control unit
007 (1) Receive a SECAM colour bar signal.(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 007.(5) Adjust 007 by pressing till the colour transients on
the colour bar pattern becomes as sharper andpossible as colouers between transients do not mixwith each other.
NTSCY DELAYadjustment
Signal generator
Remote control unit
008 (1) Receive a NTSC colour bar signal from an externalsource (e.g. FRONT AV : EXT-3).
(2) Enter the SERVICE MENU.(3) Select ADJUST MENU.(4) Select 008.(5) Adjust 008 by pressing till the colour transients on
the colour bar pattern becomes as sharper and pos-sible as colouers between transients do not mix witheach other.
(No.52137)1-23
SECTION 5TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
(No.52137)
AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, JapanVICTOR COMPANY OF JAPAN, LIMITED
